scholarly journals Bacteriological status of beef carcasses at a commercial abattoir before and after slaughterline improvements

1987 ◽  
Vol 98 (1) ◽  
pp. 81-86 ◽  
Author(s):  
W. R. Hudson ◽  
T. A. Roberts ◽  
O. P. Whelehan
Keyword(s):  
Principal Components Analysis ◽  
Principal Components ◽  
Bacterial Count ◽  
Hot Water ◽  
Water Spray ◽  
Beef Carcasses ◽  
Before And After ◽  
Components Analysis ◽  
Significant Change ◽  
Two Stages

SUMMARYThe bacteriological status of beef carcasses was monitored at a commercial abattoir before and after two stages of modernization to the beef slaughterline which included changing from cradle dressing to dressing on an overhead rail, and the introduction of hot water spray cleaning of carcasses. Although small significant (P < 0·05) differences in bacterial count occurred among carcass sites within modernization stages, significant visit within stage variation and stage × site interactions prevented any significant change in overall count being observed among stages and carcass sites. Principal components analysis revealed small changes in the distribution of bacterial numbers on the sites sampled.

scholarly journals Microbiology of beef carcasses before and after slaughterline automation

1986 ◽  
Vol 96 (2) ◽  
pp. 205-216 ◽  
Author(s):  
O. P. Whelehan ◽  
W. R. Hudson ◽  
T. A. Roberts
Keyword(s):  
Principal Components Analysis ◽  
Principal Components ◽  
Bacterial Contamination ◽  
Significant Shift ◽  
Beef Carcasses ◽  
Before And After ◽  
Components Analysis ◽  
Significant Line ◽  
Automated Line ◽  
Line Sample

SUMMARYThe bacterial status of beef carcasses at a commercial abattoir was monitored before and after slaughterline automation. Bacterial counts did not differ significantly overall (P>0·05) between the original manual line and the automated line for either morning or afternoon slaughter. On the manual line counts in the morning were lower than those from carcasses slaughtered in the afternoon, but on the automated line there was no difference between morning and afternoon counts. Due to highly significant line × sample site interaction for both morning and afternoon counts, overall differences among sample sites were not found by analysis of variance. However, principal components analysis revealed a significant shift in bacterial contamination among some sites due to slaughterline changes. The incidence of Enterobacteriaceae increased marginally following automation.

scholarly journals Validity and Reliability of the Multidimensional Dyspnoea Profile in Older Adults

2020 ◽  
pp. 00606-2020
Author(s):  
Eralda Hegendörfer ◽  
Alexander Doukhopelnikoff ◽  
Jean-Marie Degryse
Keyword(s):  
Older Adults ◽  
Principal Components Analysis ◽  
Internal Consistency ◽  
Principal Components ◽  
Concurrent Validity ◽  
Rating Scale ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Before And After ◽  
Components Analysis

Breathlessness is a common and distressing symptom in older adults and an independent predictor of adverse outcomes. Yet, its multidimensional assessment has not been validated in older adults. We apply and validate the Multidimensional Dyspnoea Profile (MDP) in a sample of adults 75 years and older in Belgium.Breathlessness was rated with the MDP, modified Borg dyspnoea scale, numerical rating scale for intensity and unpleasantness both before and after exertion (the short battery of physical performance tests (SPPB)), as well as with the Medical Research Council dyspnoea scale. The Hospital Anxiety and Depression Scale (HADS) assessed the affective status. Factor structure was analysed with exploratory principal components analysis, internal consistency with Cronbach's alpha and concurrent validity with Spearman's correlation coefficients with other breathlessness scales, HADS and SPPB scores.In 96 participants (mean age: 85 years; 34% men) who rated breathlessness at both assessment points, exploratory principal components analysis identified two components: immediate perception (IP) and emotional reaction (ER) explaining most of MDP item variance (65.37% before and 71.32% after exertion). Internal consistency was moderate to high for MDP-IP (Cronbach's alpha=0.86 before and 0.89 after exertion) and MDP-ER (Cronbach's alpha= 0.89 before and 0.91 after exertion). The correlation patterns of MDP-IP and MDP-ER with other tests confirmed concurrent validity.The domain structure, reliability and concurrent validity of MDP for breathlessness before and after exertion were confirmed in a sample of adults 75 years and older, supporting its use and further research for the multidimensional profiling of breathlessness in older adults.

Diagnoses Generated by Numerical Taxonomic Methods Applied to Standard Blood Variables

1980 ◽  
Vol 19 (04) ◽  
pp. 205-209
Author(s):  
L. A. Abbott ◽  
J. B. Mitton
Keyword(s):  
Liver Cirrhosis ◽  
Renal Disease ◽  
Principal Components Analysis ◽  
Discriminant Function ◽  
Principal Components ◽  
Discriminant Function Analysis ◽  
Chronic Renal Disease ◽  
Function Analysis ◽  
Infectious Hepatitis ◽  
Components Analysis

Data taken from the blood of 262 patients diagnosed for malabsorption, elective cholecystectomy, acute cholecystitis, infectious hepatitis, liver cirrhosis, or chronic renal disease were analyzed with three numerical taxonomy (NT) methods : cluster analysis, principal components analysis, and discriminant function analysis. Principal components analysis revealed discrete clusters of patients suffering from chronic renal disease, liver cirrhosis, and infectious hepatitis, which could be displayed by NT clustering as well as by plotting, but other disease groups were poorly defined. Sharper resolution of the same disease groups was attained by discriminant function analysis.

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